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Note 7 - Inventories - Inventories Held (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Raw materials $ 3,817 $ 2,695
Work in process 1,238 728
Inventory consigned to others 317 81
Finished goods 840 172
Total inventories $ 6,212 $ 3,676